Apparatus for field flow fractionation

Details Apparatus for field flow fractionation Apparatus for field flow fractionation

1980-02-29

1981-08-18

Hill, Ralph J.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

B03B 500

Patent

active

042844983

ABSTRACT:
A long, thin annular belt-like channel is designed for use in sedimentation field flow fractionation. This channel, which may be contained in the rotor of a centrifuge, has a generally rectangular cross-section. It has an inlet positioned to introduce particulates (includes particles and/or macromolecules) approximately at the radial distance from the outer wall that is the equilibrium distance resulting from the average force field exerted on each particulate by the centrifugal force field and by the opposing normal diffusion forces due to Brownian motion. An outlet for the channel is similarly located. A modified design tapers the inlet and outlet.

REFERENCES:
patent: 4010894 (1977-03-01), Kellogg et al.

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